Food service trailer



FIG. 1 is a left, front perspective view of a food service trailer showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side being symmetrical; and,

FIG. 5 is a rear elevational view thereof.

The bottom plan view is omitted, the trailer bottom being plain and unornamented.

The elements shown in broken lines in the disclosure are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a food service trailer, as shown and described. 